Silvanus f



(No Model.)

VAN O HOATE. INGANDESOENT ELECTRIC LAMP.

No. 362,128. Patented May 3, 1887.

INVENTU i 7% AT ST 2 w UNITED STATES PATENT OFFICE- SILVANUS F. VAN GHOATE, OF NEW YORK, N. Y.

INCANDESCENT ELECTRIC LAMP.

SPECIFICATION forming part of Letters Patent No. 362,128, dated May 3, 1887.

Application filed August 11, 1882. Serial No. 09,082. (No model.)

To all whom it may conc r material is applied to prevent the escape of 55 Be it known that I, SILVANUS F. VAN the sealing fluid or liquid. The insulation for GHOATE, a citizen of the United States, and a the two conductors extends to a point above resident of New York, in the county of New the level of the sealing fluid or liquid, as in- York and State of New York, have invented dicated in the drawings, or as may be desired.

certain new and useful Improvements in In- The fluid or liquid rises to the point a when candescent Electric Lamps, of which the folthe inverted globe is in place. The incanlowing isa specification. descent strip or filament or other light-pro- The object of my invention is to provide a ducing substance or material is supported or to simple and effective arrangement whereby the connected in any suitable manner with the incandescing filament or other light --giving conductors D E. portion of electric lamps may be sealed from A indicates the inclosing and protecting the access of external air. globe, of glass or other substance. The globe A further object is to so construct the lamp A is supported in any suitable manner in an that the inclosing globe or casing may be inverted position from the cup, bracket, or

readily removed and replaced at pleasure for other support, with its neck dipping into the 7 the purpose of obtaining access to the lightfluid or liquid, so as to seal the space within giving portion of the lamp, and so that the the globe containing the light. In the form lamp will be rescaled upon the simple restohere shown the neck rests upon and is sup- 20 ration of the globe to its proper position. ported by the bottom of the cup B. The neck To these ends my invention consistsin a cermay be shaped to fit snugly withinthe cup, so tain combination, in an electric lamp, of a cup as to hold it in place, or it may fit loosely and containing mercury or other sealing fluid or be secured by a screw set in the side of the liquid and supporting the light-giving porcup.

2 tions of the lamp, two insulated supporting- In the modification shown in Fig. 8 a stopconductors secured in said cup, and an inper, H, is screwed or fitted into the lower end verted globeor casing, the neck of which rests of a tube, B, and when desired the joints in within the cup and is immersed in the fluid the cup may be cemented with any suitable or liquid, so as to practically seal thelamp, material.

0 said globe being so constructed and arranged The plug or stopper H may be of some inthat it can be at any time lifted out of thesealsulating material, in which case the application 8 5 ing fluid or liquid to expose the light. of insulating material to the conductors at the Inthe accompanying drawings, Figure 1 is portion where they pass through the plug is a vertical central section of a lamp embodyunnecessary.

5 ing my invention. Fig. 2 is a horizontal sechat I claim as my invention istion on the line 00 x of Fig. 1. Fig. 3 is a ver- The combination of the cup or receptacle B, tical central section of a modification of the containing aliquid, the supporting-conductors sealing portion of the lamp. D E for the light, fitting in openings in the Referring to Fig. 1, B represents a cup or bottom of said cup, as described, so as to be 0 suitable receptacle, of any desired shape or directly supported thereby, and rising through material, containing a sealing fluid or liquid, and in contact with the liquid, said conductors preferably mercury, and supported by a being providedwith an insulating-envelope to bracket-arm or other fixture, U, of any suitable a point above the level of the liquid, and the construction, separate from or formed in one inverted removable globe or holder having an 45 piece with the cup, or by any other suitable open mouth or neck which fits snugly within means. the cup, as and for the purpose described. 0

D E indicate the electric conductors which Signed at New York, in the county of New supply the electric current to the lamp, and York and State of New York, this 9th day of which pass through the bottom of the cup August, A. D. 1882.

50 and are suitably insulated by a non-conducting envelope applied thereto in any desired SILVANUS VAN manner, or in any other way known in the art. Witnesses:

At the points where the conductors pass l Tnos. TooMEY, i through the cup, when desired, a cementing H. O. TOWNSEND. 

